Plane



(No Model) Y 1 H. MERZ.

' PLANE. i No. 511,311.9. Patented Deo. 26, 1893.

UNITED STATES PATENT OFFICE.

HENRY MERZ, OF POLLASKY, CALIFORNIA.

PLANE.

SPECIFICATION forming part of Letters Patent No.'511,349, dated December26, 1893.

Application tiled May 1, 1893. Serial No. 472.568-l (No model.)

skilled in the art to which it appertains to` make and use the same.

This 1nvention relates to planes for carpenters and the like, and hasfor its object to im-A prove devices of a similar character which havebeen heretofore employed.

The invention consists of the detail construction, combination andarrangement of l parts, substantially as hereinafter fully set forth,and particularly pointed out in the claims.

In the accompanying drawings:-Figure l is a vertical longitudinalsectional View of my improved plane. Fig. 2 is a view of the cuttingblade detached. Fig. 3 is a perspective View of the cap-plate, screw andadjuncts. Fig. 41s a detail perspective view of a part of the adjustingmechanism. Fig. 5 is a bottom plan view of the cap plate and adjustmentsin connection therewith. Fig. 6 is a rear end elevation of the clamp andcap plate.

Referring to the drawings, A designates the main or body portion of theplane, having the ordinary opening a which terminates in the transverseslot o through which the cutting blade B projects. In this cutting bladeis a T-sliaped opening, in the outer end of which is a lug b formingapivot point. In the rear inclined wall of opening o is set a metallicplate b into a threaded opening in which is screwed a screw C, the headd of which has an overhanging lower ange d.

D is a cap plate having a longitudinal slot d2, and a rear central cutaway portion d3, and two corresponding sockets dA1 on either side ofsaid cut-away portion. To the under side of this cap-plate is fastened aspringplate E from which extend parallel arms e free at their outerends.

F is a clamp which lits between sockets d4 and is pivoted by a rod fsupported by said sockets. This clampis rounded at its pivoted end andis provided with two curved cam-lugs f', which when the clamp is loweredwill extend through the cut-away portion of the capplate and bear uponthe free ends of the spring-arms, causing the latter to bind against theupper surfaces of the cutting blade.

G is a block having upper shoulders g, and a threaded projection g whichis extended up through slot d2 of cap-plate D and upon it is screwed anut g2 designed to bind against a washer g3 extending across said slot.The shoulders g are drawn against the lower walls of slot cl2, saidwalls being made tapering. The lower end of block G has an acute lip g4extending therefrom and designed to engage with the overhanging portionof the headed screw C. Thelip is formed into somewhat ot' a point atabout its center so as to securely engage the head of the screw and beheld stationary. Through a threaded opening in this,

block extends a screw rod H, which iits in the T-shaped .opening of thecutting blade. A socket in the outer end of this screw-rod receives thelug b. Adjacent to this end is a l milled head h by which the screw rodis readily and easily turned.

The operation of my improved plane is readily understood from what hasgone before. To quickly effect the adjustment of the cutting blade theoperator raises the clamp so as to release the frictional engagementbetween the cutting blade and cap-plate, permitting the spring arm to befree. By vturning the screw rod the cutting blade can be moved in eitherdirection, the block secured to said capplat-e being stationary byreason of the engagement with the screw C. After the cutting blade hasbeen adjusted the operator closes down the clamp and the cam-lugsthereof bind the spring arms down on said cutting blade, making a firmfrictional contact therewith and holding the cutting blade in position.By turning the screw-rod the cutting blade can still be further adjustedbut is firmly held at any desired point, the capplate being stationaryby reason of the engagement of the acute lip of the block with the headof the screw C.

The advantages of my invention are apparent to those skilled in the artto which it appertains, and it will be specially observed that themechanism employed is simple and not liable to readily getout of order.

VI claim as my invention-v v 1. The herein described plane, comprisingICO a body with a slot or opening therein, aheaded stud or screw Carranged obliquely and having a flanged head, a blade having alongitudinally disposed slot with a pivot at the central upper portionof the same, a cap plate with a slot therein in which is adjustablymounted a block formed with a shouldered groove engaging said Hangedhead of the stud or screw, and having a screw threaded opening extendedtransversely therethrough, a spring clamp having its upper end pivotallyconnected to the upper portion of the said cap plate, and a screw rodlocated in the said longitudinally disposed slot of the blade, andhaving a milled nut thereon Whose upper end engages the pivot at theupper end of said slot in the blade, said nut being located in the slot,substantially as described.

2.The herein described plane comprising a body having a stud or screwtherein, with a anged head, a blade having a longitudinally disposedslot with a pivot at the upper terminating Wall of the same, a cap plateprovided with a slot and having sockets at the upper portions of thesame with a central cutaway part, a block adj ustably mounted in theslot of the cap plate, and formed with a lower shouldered groove toengage the flanged head of the said stud or screw, a spring clampmounted on the cap plate and having its upper end pivotally located inthe cnt-away part of the latter, and pivoted to the sockets thereof,having parallel arms @which are free and bear against the blade toproduce a spring action and a screw rod H mounted in thelongitudinallydisposed. slot of the blade and c xtending through the aforesaid block,said screw rod having a milled nut on the upper end thereof foradjusting the blade and having its upper surface rotatably engaging thesaid pivot, said nut being revoluble in the slot of the blade,substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

HENRY MERZ.

Witnesses:

W. R. THOMAS, G. M. MCGUIRE.

